PD4106 - need some help with air suspension - bus leaning after a few days

[matzeinusa]

Hi!
Maybe you can help me since the shop mechanic told me he can't find anything...

My bus is leaning to the right side after it's being parked for a few days. It looks, drives and works fine once the engine is running.
I don't know exactly where to look for leaks or what the issue might be.

Also, are there any spots on the frame (under the frame) where I could put a leveler or a jack, just to level the bus without messing up the frame?
Thanks,
Matt

[OneLapper]

Matt,

The side thats leaning has a small air leak at the air bags, at the height control valve, or the air line between the two.  All are pretty easy to replace. You'll find that if you replace the bags, lines, and height control valves, the suspension will stay up.  Not bragging (lol), but my 4106 will stay aired up for months.

[Dave5Cs]

hook a shop air compressor as far away as possible from the bus. Hook it in to an air valve NPT fitting where ever they are on a GM or put on in. RJ can tell you where.
Then  use a spray bottle full of soap and water. don't go under the bus until you learn how to block it under the blocking points front and rear. Spray the bags and any air fittings and the leveling valves. you will see bubbles at the leaks. Check hoses also.